[Jewelry making - Article 00649] - Re: [Orchid] Tumbling media questions

[Sara Grinnell]

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    Kathy, In our shop experience tumbling silver jewelry we use a
    centrifugal machine, but the same media would work in your vibe
    machine. We found mixing the plastic cones and pyramids was very
    effective and started with heavy to medium cut media, and then we
    transfer all the parts to a medium to fine cut plastic media, also
    pyramid and cone mix, and last to a fine mix of just cones. You will
    have to adjust the times your parts stay in each process based on
    the pieces you are mass finishing and desired results. Last, we
    empty our parts into a rotary tumbler with stainless steel shot and
    Rio's Sunsheen Gold and Silver Deburring Compund. We found the Super
    Sunsheen Burnishing compund works best in our pin finisher, and the
    yellow deburring works best for the results we desire in the rotary
    tumbler, as a final burnishing process. 

    On another note, we have removed the large pins from our SS shot as
    they seem to impindge (sp?) the surface of our smooth parts. 

    If you have more questions on the process we use, please feel free
    to ask. After much research and experimenting, we resolved the best
    results in our mass finishing were acheived with a combination of
    both, research and experimenting. 

Good Luck!
Sara


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